Grade 1045H
USA UNS H10450
Corresponding Standard ASTM A 304-2004
Standard Specification for Carbon and Alloy Steel Bars Subject to End-Quench Hardenability Requirements ***BEST AVAILABLE COPY***
Classification Carbon Steel
1045H Chemical Element Composition Content (%)
Component C Si Mn P S
Minimum Value 0.42 0.15 0.5 - -
Maximum Value 0.51 0.3 1 0.04 0.05
Approximate Comparison Table
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France Russia Sweden United Kingdom
GB ISC CNS JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF GOST SS BS EN/BS
45H A59455 S45C S45C SM45C 4045H H10450 C45E4H C45E4 1.1191 2C45H
(XC45)
45 1672 2C45H
(080A42)
1045H Corresponding Standards(Same grade name, different standards)

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